On an unauthorized flight during crop spraying operations for the sovkhoz (state farm) of Balapanovski from an airstrip located about 5 km northeast of Novonikolayevka (Beskaragai district of the Semipalatinsk region), the pilot completed a steep turn to left at low height when the airplane stalled and crashed in an open field located 1,700 metres from the airfield at N51°06'12" E79°27'12" and caught fire. The pilot and a passenger were killed while two other passengers were seriously injured. One of the survivor, a teenager, died a day later.

Probable cause:

Poor discipline on part of the pilot who decided to attempt an unauthorized flight with illegal people on board and completed hazardous manoeuvres.